<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>.enter按键修饰符</title>
    <script src="/js/vue.js"></script>
</head>
<body>
    <div id="app">
        <input type="text" v-on:keyup.enter="submitBtn">
    </div>
</body>
<script>
    var vm = new Vue({
        el:'#app',
        data:{},
        methods:{
            submitBtn(){
                console.log('点击表单');
            }
        }
    })
</script>
</html>